Reduced stomatal frequency with rising elevation for Kobresia royleana on the Tibetan Plateau
文献类型：期刊论文
| 作者 | Zhang, Lin1; Zhang, Shuren4 ; Li, Qijia3; Quan, Cheng3
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| 刊名 | GLOBAL ECOLOGY AND CONSERVATION
 |
| 出版日期 | 2020 |
| 卷号 | 24 |
| 关键词 | C-3 sedge Stomatal density Low temperature Specific leaf area Leaf carbon discrimination |
| DOI | 10.1016/j.gecco.2020.e01326 |
| 文献子类 | Article |
| 英文摘要 | Knowledge about within-species variation in stomatal frequency with varying elevation at very high elevations is rare, which is crucial for us to understand how alpine plants are adapted to the extreme environment. Here, we focus on the variation in stomatal frequency in Kobresia royleana (Nees) Boeckeler (Cyperaceae, Cyperales) along two altitudinal transects (elevation ranges from 3723 m to 5081 m) in the center of the Tibetan Plateau. The result shows the stomatal density (SD) varied from 303 +/- 55.6 mm(-2) to 542 +/- 81.8 mm(-2), and stomatal index (SI) ranged from 21.0% to 29.6%. In contrast with most cases, an unexpected negative response of stomatal frequency to rising elevation was observed. Among abiotic factors, the growing season mean temperature and CO2 partial pressure significantly declined with increasing elevation, while the growing season precipitation did not vary. Therefore, the decreasing SD and SI were mainly due to the declining temperature rather than the decreasing CO2 partial pressure. Further, SD and SI were negatively related to leaf functional traits of specific leaf area (SLA), leaf nitrogen concentration (N) and stable carbon isotope ratios (delta C-13), and all these morphological and physiological traits tended to covary with rising elevation and declining temperature. Meanwhile, the increasing delta C-13, N and SLA with elevation seem to be strategies for alpine plants to cope with the low-temperature environments. Therefore, the observed covariance between stomatal frequency and leaf functional traits also suggests that the low temperature rather than low CO2 partial pressure mainly leads to the elevational pattern of stomatal frequency for this alpine species. (C) 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license. |
| 学科主题 | Biodiversity Conservation ; Ecology |
| 出版地 | AMSTERDAM |
| 电子版国际标准刊号 | 2351-9894 |
| WOS关键词 | CARBON-ISOTOPE DISCRIMINATION ; WATER-USE EFFICIENCY ; UV-B RADIATION ; LEAF MORPHOLOGY ; ALTITUDINAL VARIATION ; CLIMATE-CHANGE ; FOSSIL LEAVES ; DENSITY ; CO2 ; TRAITS |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000608479300016 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41820104002, 41772009, 42002022] ; S&T Basic Work of Sciences and Technology [2015FY11030001-5] ; Fundamental Research Funds for the Central Universities, CHD [300102270301] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/21472]  |
| 专题 | 植物研究所_系统与进化植物学研究中心_系统与进化植物学研究中心_学位论文 |
| 作者单位 | 1.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 2.Changan Univ, Sch Earth Sci & Resources, Xian 710054, Peoples R China 3.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China 4.Chinese Acad Sci, Inst Tibetan Plateau Res, CAS Key Lab Alpine Ecol, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Lin,Zhang, Shuren,Li, Qijia,et al. Reduced stomatal frequency with rising elevation for Kobresia royleana on the Tibetan Plateau[J]. GLOBAL ECOLOGY AND CONSERVATION,2020,24. |
| APA | Zhang, Lin,Zhang, Shuren,Li, Qijia,&Quan, Cheng.(2020).Reduced stomatal frequency with rising elevation for Kobresia royleana on the Tibetan Plateau.GLOBAL ECOLOGY AND CONSERVATION,24. |
| MLA | Zhang, Lin,et al."Reduced stomatal frequency with rising elevation for Kobresia royleana on the Tibetan Plateau".GLOBAL ECOLOGY AND CONSERVATION 24(2020). |
入库方式： OAI收割
来源：植物研究所
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